Login hint

You can pre-fill the User ID (national identity number) for the BankID session.

The login_hint is always prefixed with a ::

:07025312345

There are two ways to send a User ID to BankID:

• As a login_hint parameter in the backchannel Pushed Authorization Request.
• As a login_hint claim in an encrypted request object in the Authorization Request.

A hint is just an hint - not a fact

When pre-filling the User ID for an end user, the resulting authentication may specify a different end user.

No longer use login_hint=BIS or login_hint=BID

Previous versions of BankID allowed the use of login_hint to select desired Identity Provider and Level of Assurance.

This is no longer recommended as acr_values should be used for this purpose. Read more here.